Impact of temporal resolution on LV myocardial regional strain assessment with real-time 3D ultrasound

Author

Lorsakul, Auranuch ; Gamarnik, V. ; Qi Duan ; Russo, Carmine ; Angelini, Emma ; Homma, S. ; Laine, Andrew F.

Author_Institution

Dept. of Biomed. Eng., Columbia Univ., New York, NY, USA

fYear

2012

fDate

Aug. 28 2012-Sept. 1 2012

Firstpage

4075

Lastpage

4078

Abstract

Non-invasive quantification of regional left ventricular (LV) deformation is crucial for the identification of clinical and subclinical myocardial dysfunction in various conditions. Several software tools now exist to provide regional LV strain estimation for echocardiography images. In this paper, we experimentally investigated the impact of real-time three-dimensional (RT3D) ultrasound temporal resolution on the precision of an integrated speckle-tracking framework. We compared temporal displacement and strain profiles acquired at three different frame rates on five normal volunteers. Results showed that estimated displacement fields and regional strain measurements were more homogeneous and of larger amplitude at higher frame rates.

Keywords

biomechanics; deformation; echocardiography; estimation theory; image segmentation; medical image processing; muscle; speckle; strain measurement; ultrasonic imaging; clinical myocardial dysfunction; echo cardiography images; image segmentation; integrated speckle-tracking framework; left ventricular myocardial regional strain assessment; left ventricular strain estimation; noninvasive quantification; real-time three-dimensional ultrasound temporal resolution; regional left ventricular deformation; software tools; strain measurements; strain profiles; subclinical myocardial dysfunction; temporal displacement; Equations; Image resolution; Manuals; Myocardium; Speckle; Strain; System-on-a-chip; Algorithms; Computer Systems; Echocardiography, Three-Dimensional; Elastic Modulus; Elasticity Imaging Techniques; Heart Ventricles; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Reproducibility of Results; Sensitivity and Specificity; Ventricular Function, Left;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Conference_Location

San Diego, CA

ISSN

1557-170X

Print_ISBN

978-1-4244-4119-8

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/EMBC.2012.6346862

Filename

6346862